WAUSAU, Wis. – Prosecutors are considering whether to charge a 15-year-old as an adult in the stabbing death of a 13-year-old boy in central Wisconsin.

Wausau police say Isaiah Powell was stabbed twice in the back during a fight involving a group of teenage boys that started with an argument on Facebook. Police say boys with a BB gun fired a couple of times at another group on a porch before the fight broke out.